317457149 has 4 divisors (see below), whose sum is σ = 334165440. Its totient is φ = 300748860.

The previous prime is 317457131. The next prime is 317457181. The reversal of 317457149 is 941754713.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 941754713 = 313 ⋅3008801.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-317457149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317457199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8354117 + ... + 8354154.

It is an arithmetic number, because the mean of its divisors is an integer number (83541360).

Almost surely, 2^317457149 is an apocalyptic number.

It is an amenable number.

317457149 is a deficient number, since it is larger than the sum of its proper divisors (16708291).

317457149 is a wasteful number, since it uses less digits than its factorization.

317457149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16708290.

The product of its digits is 105840, while the sum is 41.

The square root of 317457149 is about 17817.3272125760. The cubic root of 317457149 is about 682.1738025348.

The spelling of 317457149 in words is "three hundred seventeen million, four hundred fifty-seven thousand, one hundred forty-nine".